Open3D WARNING Read PLY failed: unable to read file

I'm facing an issue regarding reading .ply files. I double-checked that the file's path is correct. The code raises a warning and continues running. However, the results of the processing made on the cloud variable empty.

import open3d as o3d
cloud = o3d.io.read_point_cloud("aaa.ply")

> [Open3D WARNING] Read PLY failed: unable to read file: aaa.ply
RPly: Aborted by user

I'm using the version 0.17.0 of Open3D.

Update:

Link to the .ply file.

It might be a problem with your .ply file, try with one from here or share your aaa.ply file with us.

Also, you can have a look at this issue.

EDIT
After you provided the .ply file, indeed it seems to be throwing that warning, but I can access the points in the point cloud:

import open3d as o3d
import numpy as np
cloud = o3d.io.read_point_cloud('aaa.ply')
o3d.visualization.draw_geometries([cloud])
cloudPoints = np.asarray(cloud.points)

I had a similar but slightly different error: "open3d .ply Read PLY failed: no vertex attribute", so this may help you. The .ply file I was using was part of the DALES lidar dataset. Open3d expects the files have elements named "vertex" and "face" apparently. I found that my .ply files had elements named "testing" in the header.

How to check element types
Open the file in a text editor, or just use command line to see the top 10 or so lines

Inside :
<!-- language: text-->
ply
format binary_little_endian 1.0
element testing 11331760 # This needs to be "vertex" or "face" not "testing"
property float x
property float y
property float z
property int intensity
property int sem_class
property int ins_class
end_header

You may be able to manually type and save it. I had several files to change, so used this code to convert all elements to "vertex". This would be bad if you had a mix of vertexes and faces. My data are pointclouds, so everything is a vertex.

Change element types

To convert a single file to type "vertex" with python:

<!-- language: python -->
from plyfile import PlyData, PlyProperty, PlyElement
from pathlib import Path

# read in file
data = PlyData.read("orig_file.ply")
# make a new PlyElement with type "vertex" with our existing data
renamed_element = PlyElement.describe(data.elements[0].data, 'vertex',
                        comments=[f'Renamed from: {data.elements[0].name}'])
# Make a new PlyData object of binary format 
fixed_data = PlyData([renamed_element], text=to_ascii)
# Write it out
fixed_data.write("Fixed_file.ply")